How Does a “Flash Loan” Differ from a Traditional Collateralized Loan in DeFi?

A flash loan is a unique, uncollateralized loan that must be borrowed and repaid within the same blockchain transaction (or block). Traditional loans require collateral to be posted upfront and can be held for an extended period.

Flash loans are used primarily for arbitrage, collateral swapping, or liquidation exploits, as they allow users to utilize massive amounts of capital instantly without any personal risk of loss, provided the entire operation succeeds atomically.

What Is a “Flash Loan” and How Does It Exploit Composability?
What Is the Difference between a Flash Loan and a Traditional Uncollateralized Loan?
Why Are Flash Loans Only Possible on a Blockchain?
How Does a Flash Loan Differ from a Traditional Smart Contract Loan?
What Is a “Flash Loan” and How Does It Leverage DeFi Composability?
What Is the Primary Difference between a Flash Loan and a Traditional Margin Loan?
What Is a “Flash Loan” and How Does It Relate to Market Manipulation Risks on DEXs?
Why Are Flash Loans Considered “Uncollateralized” and How Is the Risk Mitigated for the Lender?

Glossar